Idea for improvement
Have ranked 5s tournamenets on some weekends, 3 game series like LCS, give played a week advance of who their against and allow them to do recon kinda like the pros do. I find ranked 5s boring as you really don't know who to ban since you cant target ban players its literally just random. This would also make ranked more interesting and would provide some experience for the teams tryingto go pro as they can have a mini LCS playoffs in their own ranked.
Rewards for winning would be: First place: 500 RP Second place: 300 RP Third place: 150 RP
Have separate rewards for best player at each position where it goes by KDA (not feeding), kill participation, cs and objective help (actually helping n drag baron and towers). These rewards could be IP boost or just straight IP.
Note: Have a limit on how many teams can enter and do one for every couple ranks like as follow: Bronze 5,4,3 Bronze 2,1
Silver,5,4 Silver 3,2,1
as so on players with similar skill are matched kind of like the premade ranked list for high tiers